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Jae-Jin

Jae Jin Cho, Seoul KR

Patent application numberDescriptionPublished
20090124007Method for the Simultaneous Primary-Isolation and Expansion of Endothelial Stem/Progenitor Cell and Mesenchymal Stem Cell Derived From Mammal Including Human Umbilical Cord - Disclosed herein is a method for isolating and culturing the endothelial stem/progenitor cells and mesenchymal stem cells derived from the umbilical cord of mammals, including human beings. More specifically, disclosed are a method for isolating and culturing endothelial stem/progenitor cells and mesenchymal stem cells at high purity from the umbilical cord of mammals, including human beings, and preferably from the human umbilical cord, as well as endothelial stem/progenitor cells and mesenchymal stem cells, isolated and cultured according to said method, and a method for freezing and thawing the isolated and cultured cells. According to the disclosed method, endothelial stem/progenitor cells and mesenchymal stem cells can be easily isolated and purified with high purity from umbilical cord, and can be cultured with high viability for a long period of time.05-14-2009

Jae Jin Choi, Daejeon KR

Patent application numberDescriptionPublished
20080233557PNA Probes, Kits, and Methods for Detecting Lamivudine-Resistant Hepatitis B Viruses - Disclosed are peptide nucleic acid (PNA) probes to detect lamivudine resistant mutants of hepatitis B virus (HBV), which causes acute and chronic hepatitis, kits for detecting lamivudine resistant HBV comprising the PNA probes, and methods for detecting lamivudine resistant HBV by using the kits. They can accurately detect mutations of rtL180M, rtM204V, rtM204I and rtV2071 within B and C domains of HBV DNA polymerase gene, the main cause of lamivudine resistance, as well as mixed mutants of more than one mutant. They can detect lamivudine resistant HBV with high specificity and sensitivity.09-25-2008
20080248461PNA Probes, Kits, and Methods for Detecting Genotypes of Human Papillomavirus - Disclosed are PNA probes capable of genotype specifically binding with Human Paillomavirus (HPV) DNA, kits for detecting HPV genotypes comprising the probes, and methods for detecting HPV genotypes by using the kits, which enables the accurate detection of all 24 genotypes of HPV found in cervix, diagnosis of combined infection with more than one HPV genotype, and detection of HPV genotypes with high specificity and sensitivity.10-09-2008
20090312197PEPTIDE NUCLEIC ACIDS CONJUGATED WITH MULTI-AMINE LINKERS AND NUCLEIC ACID DETECTING DEVICE USING THE SAME - The present invention relates to a peptide nucleic acid (PNA) conjugated with multi-amine linkers, and a method to prepare the same and utilization thereof. More specifically, the method is characterized by conjugating monomers having multi-amine functionality sequentially at a PNA terminal, and effectively immobilizing the PNA conjugated with multi-amine linkers on a solid surface. A PNA array prepared using the PNA conjugated with multi-amine linkers exhibits improved sensitivity and specificity of signals for detecting target nucleic acids as compared to a PNA array using PNA probes having only one amine group. The PNA conjugated with multi-amine linkers can be utilized in nucleic acid detecting devices or kits for gene diagnosis such as PNA microarrays, PNA chips, PNA field-effect transistors and impedance detectors.12-17-2009
20100248980Method for Selective Labeling and Detection of Target Nucleic Acids Using Immobilized Peptide Nucleic Acid Probes - Disclosed are a method for selective labeling of target nucleic acids on an array having nucleic acid analogue, e.g. PNA (peptide nucleic acid), probes immobilized on a support or supports, comprising adding to the array a detectable label and an agent for introducing the label into the target nucleic acids, after hybridization between the target nucleic acids and the nucleic acid analogue probes, and a method for detection of target nucleic acids using the same.09-30-2010
20100292471PEPTIDE NUCLEIC ACID OLIGOMERS COMPRISING UNIVERSAL BASES,PREPARATION METHODS THEREOF, AND KITS, DEVICES AND METHODS FOR THE ANALYSIS, DETECTION OR MODULATION OF NUCLEIC ACIDS USING THE SAME - Disclosed is a PNA oligomer with increased solubility in water and specificity upon hybridization with nucleic acid, which comprises at least one universal base, capable of forming a base pair with natural DNA or RNA bases, incorporated in its base sequence, the base sequence having at least 60% purine bases or at least four contiguous purine bases.11-18-2010
20110111416Peptide Nucleic Acid Probes, Kits and Methods for Expression Profiling of Micrornas - Disclosed are peptide nucleic acid (PNA) probes, a kit and a method for expression profiling of microRNAs (miRNAs), which play an important role in regulation of expression of genes encoding proteins.05-12-2011

Patent applications by Jae Jin Choi, Daejeon KR

Jae Jin Kim, Gyeonggi-Do KR

Patent application numberDescriptionPublished
20120014136LIGHT GUIDE PLATE AND BACKLIGHT UNIT INCLUDING THE SAME - A light guide plate having a pattern to minimize generation of a dark zone and a backlight unit including the same are disclosed. The light guide plate includes an intaglio pattern consisting of recesses formed in a surface opposite to a light emitting surface thereof to have a cross section having major-axis and minor-axis diameters and depth, the recesses being spaced apart from one another in first and second directions by first and second distances respectively. The density of the intaglio pattern is directly proportional to the major-axis and minor-axis diameters and depth, and is inversely proportional to the first and second distances. The intaglio pattern has the minimum density in a first region adjacent to a light source, and the maximum density in a second region that is the maximum distance from the light source. A density ratio of the maximum density to the minimum density is 900.01-19-2012

Jae Jin Kim, Kimpo-Shi KR

Patent application numberDescriptionPublished
20080241661Mobile terminal with user identification card including personal finance-related information and method of using a value-added mobile service through said mobile terminal - The present invention enables a user to receive a financial service anywhere through a mobile terminal equipped with a UIM (User Identification Module) electronic card. In the present invention, a user enters his or her password to a mobile terminal with a UIM card including subscriber telephone number, finance, authorization, and personal information, then, if the entered password is correct, authorization is processed with a remote authorizing server based on the authorization information. After authorization, user's requesting service, e.g., payment service, transaction particulars inquiry service, prepaid card recharging service is conducted through a mobile network.10-02-2008
20080242355Mobile terminal with user identification card including personal finance-related information and method of using a value-added mobile service through said mobile terminal - The present invention enables a user to receive a financial service anywhere through a mobile terminal equipped with a UIM (User Identification Module) electronic card. In the present invention, a user enters his or her password to a mobile terminal with a UIM card including subscriber telephone number, finance, authorization, and personal information, then, if the entered password is correct, authorization is processed with a remote authorizing server based on the authorization information. After authorization, user's requesting service, e.g., payment service, transaction particulars inquiry service, prepaid card recharging service is conducted through a mobile network.10-02-2008

Jae Jin Kim, Yongin-Si KR

Patent application numberDescriptionPublished
20120008513METHOD AND APPARATUS FOR DETECTING TARGET FLOW IN WIRELESS COMMUNICATION SYSTEM - An apparatus and method for detecting a target flow in a wireless communication system are provided. The target flow detection method includes receiving a packet, determining a behavior state of the packet, comparing the behavior state with a plurality of stored behavior signatures, retrieving, when the behavior state matches one of the stored behavior signatures, a target flow corresponding to the behavior signature, and instructing a packet processor to process the target flow.01-12-2012

Jae Jin Kwang, Daejon KR

Patent application numberDescriptionPublished
20110132382CIGARETTE PAPER COATED WITH COATING MATERIALS FOR LOW IGNITION PROPENSITY AND A FIRE-SAFE CIGARETTE COVERED BY THE SAME - The present invention relates to a cigarette paper with a coating material for Low Ignition Propensity (LIP) and a fire-safe cigarette having the same. More particularly, the present invention manufacture a cigarette paper by coating a pre-determined area with a coating material for LIP to lower a porosity of the cigarette paper, and relates to a cigarette paper which retains original flavor and taste of the cigarette and has an improved fire-safety and a cigarette having the same. The present invention provides a cigarette paper containing a coating material for LIP having an improved quality as compared to a conventional composition applicable to a fire-safe cigarette and thus capable of retaining the original flavor of the cigarette as well as having ash integrity, and cigarette having the same.06-09-2011

Jae-Jin Chang, Seoul KR

Patent application numberDescriptionPublished
20110090717Two-stage insulated bidirectional DC/DC power converter using a constant duty ratio LLC resonant converter - A two-stage insulated bidirectional DC/DC power converter is disclosed. A two-stage insulated bidirectional DC/DC power converter according to an embodiment of the invention has the characteristic of including: an LLC resonant converter operating at a constant duty ratio; a bidirectional converter joined to a front part of the LLC resonant converter and configured to perform a booster converter function of outputting the input voltage at a consistent input voltage for the LLC resonant converter, and a buck converter function of reducing the voltage by way of the LLC resonant converter and then outputting a consistent voltage; and a bidirectional converter control unit configured to control changes in an input voltage of the bidirectional converter and regulate an output voltage of the LLC resonant converter to thereby maintain a consistent input voltage of the LLC resonant converter, such that the LLC resonant converter operates at a constant duty ratio.04-21-2011

Jae-Jin Kim, Seoul KR

Patent application numberDescriptionPublished
20090317478METHOD OF PREPARING COVERED POROUS BIODEGRADABLE POLYMER MICROSPHERES FOR SUSTAINED-RELEASE DRUG DELIVERY AND TISSUE REGENERATION - The present invention relates to covered porous biodegradable polymer microspheres for sustained-release drug delivery and tissue regeneration which has an interconnected inner open pore structure having a wide surface area and high porosity and an outer closed pore structure in which the surface of the microsphere is covered with a thin layer of a biodegradable polymer, and thereby the pores formed on the surface and exposed to the outside are closed; and methods for preparing the same. Due to such a characteristic pore structure, the covered porous biodegradable polymer microspheres according to the present invention can prevent the biologically active material from being excessively released in the early stage immediately after administration, and after that, can gradually release the biologically active material through the interconnected inner pore structure over a prolonged period as the biodegradable polymer thin layer is degraded. Therefore, the microsphere of the present invention can be effectively used for sustained-release drug delivery and tissue regeneration.12-24-2009
20100055396METHOD FOR HIGH RESOLUTION INK-JET PRINT USING PRE-PATTERNED SUBSTRATE AND CONDUCTIVE SUBSTRATE MANUFACTURED USING THE SAME - A method for high resolution ink-jet print using a pre-patterned substrate employs an ink-jet printing device including an ink-jet head for discharging conductive ink droplets and a driving stage for supporting a substrate to which the conductive ink droplets are hit, to draw a fine line width pattern on the substrate. The method includes (A) forming a stripe pattern with repeated stripes on a substrate surface on which a fine line width pattern will be formed, thereby preparing a pre-patterned substrate; (B) loading the substrate to the ink-jet printing device; and (C) injecting conductive ink droplets to a substrate region where the stripe pattern is formed. An equivalent interval (d) of the stripe pattern and a fine line width (D) of the drawn fine line width pattern satisfy a relation of d<03-04-2010
20100098762Thermosensitive Pluronic Derivative Hydrogels With High Biodegradability And Biocompatibility For Tissue Regeneration And Preparation Method Thereof - The present invention relates to a thermosensitive pluronic derivative hydrogel for tissue regeneration in which a biodegradable polymer is introduced at one end or both ends of a pluronic polymer, a methacryloxyethyl trimellitic acid anhydride is conjugated to the biodegradable polymer, and a physiologically active substance is fixed to the methacryloxyethyl trimellitic acid anhydride, as well as a method for the preparation thereof. The pluronic derivative hydrogel according to the present invention exhibits high biodegradability due to the introduction of a biodegradable polymer while still maintaining the themosensitivity of the pluronic polymer itself and shows good biocompatibility owing to the coupling with a physiologically active substance capable of improving cell adhesion, proliferation and differentiation. Therefore, the pluronic derivative hydrogel according to the present invention can be effectively used in the regeneration of various kinds of tissues and organs.04-22-2010
20100129422POROUS BIODEGRADABLE POLYMER SCAFFOLDS FOR IN SITU TISSUE REGENERATION AND METHOD FOR THE PREPARATION THEREOF - The present invention relates to an intelligent porous biodegradable polymer scaffold for in situ tissue regeneration in which two kinds of physiologically active substances having high differentiation potential and biocompatibility are introduced into the polymer scaffold and conjugated to the surface thereof, respectively, and a method for the preparation thereof. Since the intelligent porous biodegradable polymer scaffold exhibits improved biocompatibility and differentiation potential due to the introduction of physiologically active substances capable of efficiently inducing cell proliferation and differentiation into both the surface and the inside thereof, it can directly induce in situ tissue regeneration of the musculoskeletal system from stem cells in a living tissue after transplanting the polymer scaffold and stem cells into a human body without additional in vitro cultivation. Therefore, the intelligent porous biodegradable polymer scaffold according to the present invention can be effectively used in the regeneration of various kinds of tissues and organs including the musculoskeletal system.05-27-2010
20100172262APPARATUS AND METHOD FOR DELAY TIME COMPUTATION AND DELAY COMPENSATION BETWEEN BASE STATION AND REMOTE RADIO FREQUENCY UNIT IN BROADBAND WIRELESS ACCESS SYSTEM - An apparatus and method for delay time computation and delay compensation between a Base Station (BS) and a remote Radio Frequency (RF) unit in a broadband wireless access system are provided. In a method of operating an apparatus for determining a delay time to compensate for delay between a BS modem card and a remote RF unit in a wireless access system, the method includes determining a process delay time required when traffic data is output from the BS modem card to an antenna of the remote RF unit in a state where a reference cable having a length short enough to neglect a cable delay time is connected between the BS modem card and the remote RF unit, determining a cable delay time required when a sync pulse signal is transmitted through a cable used in actual system operation between the BS modem card and the remote RF unit, and determining a time for outputting traffic data at an earlier time from a modem included in the BS modem card by using the determined process delay time and cable delay time.07-08-2010
20100279233METHOD FOR LASER INTERFERENCE LITHOGRAPHY USING DIFFRACTION GRATING - A method for laser interference lithography using a diffraction grating includes (a) forming a photoresist layer on a work substrate to which a repeated fine pattern is to be formed; (b) forming a refractive index matching material layer on the photoresist layer; (c) forming on the refractive index matching material layer a diffraction grating layer having a period of diffraction grating within the range from λ/n11-04-2010
20110111367NANOCOUPLING FOR IMPROVEMENT OF COATING ADHESION OF POLYMER ON METAL SUBSTRATES - Disclosed is nanocoupling of a polymer onto a surface of a metal substrate for improving coating adhesion of the polymer on the metal substrate, and in vivo stability and durability of the polymer. In accordance with the present invention, the polymers can be grafted via a chemical bonding on the surface of the metal substrate by the nanocoupling, by which adhesion, biocompatibility and durability of a polymer-coated layer which is to be formed later on the metal substrate were remarkably improved; therefore, the nanocoupling according to the present invention can be applied to surface modification of a metal implant, such as stents, mechanical valves, and an articular, a spinal, a dental and an orthopedic implants.05-12-2011
20110263018CORE-SHELL STRUCTURED DELIVERY SYSTEM FOR GROWTH FACTORS, A PREPARATION METHOD THEREOF, AND USE THEREOF FOR THE DIFFERENTIATION OR PROLIFERATION OF CELLS - The present invention relates to a method of preparing a delivery system capable of loading bioactive growth factors that are essential for the differentiation and proliferation of cells and is characterized as loading at least two types of components comprising growth factors in a single carrier, whereby the release of each of the plurality of growth factors can be temporally controlled. Specifically, the method of preparing a microcapsule type growth factor delivery system according to the present invention includes: (1) preparing a polymeric microsphere comprising a first component, and then encapsulating the microspheres by electrodropping the polymer microsphere into another polymer comprising a second component, thereby manufacturing a core-shell structured, microcapsule type delivery system, or (2) encapsulating a polymer solution comprising a first component by electrodropping the polymer solution into another polymer comprising a second component, thereby manufacturing a core-shell structured microcapsule type delivery system. The present invention also provides a stem cell differentiation method involving bringing a microcapsule type delivery system loaded with multiple growth factors according to the present invention into contact with stem cells.10-27-2011

Patent applications by Jae-Jin Kim, Seoul KR

Jae-Jin Park, Seongnam-Si KR

Patent application numberDescriptionPublished
20080218292Low voltage data transmitting circuit and associated methods - A low voltage data transmitting circuit (LVDTC) may be connected to a first transmission line that transmits a first voltage signal to a receiver and a second transmission line that transmits a second voltage signal to the receiver. The LVDTC includes a first resistor coupled to the first transmission line, a second resistor coupled to the second transmission line, and a control unit coupled to the first transmission line and the second transmission line, the control unit being configured to control voltage levels of the first and second voltage signals such that the voltage levels of the first and second voltage signals are higher than a ground voltage level of the receiver, wherein the first and second voltage signals may constitute a differential pair.09-11-2008
20090015537DISPLAY DEVICE TRANSFERRING DATA SIGNAL WITH CLOCK - A display device includes; a panel, a timing controller generating an embedded clock data signal combining image data and a clock signal, and a column driver driving the panel in response to the embedded clock data signal. The data bits within the embedded clock data signal are communicated at one of three voltage levels in a three-level signaling scheme, and the timing controller determines one of the three voltage levels for a current data bit (DIN[n]) within the embedded clock data signal in relation to a voltage level of a previous data bit (DIN[n−1]) within the embedded clock data signal.01-15-2009
20100244914CLOCK GENERATOR TO REDUCE LONG TERM JITTER - A clock generator includes a controller, a digital phase locked loop (PLL) circuit, a charge pump phase locked loop (PLL) circuit and a divider. The controller generates a division factor and a first internal clock signal in response to a low-frequency reference clock signal and a multiplication factor. The digital PLL circuit generates a second internal clock signal in response to the reference clock signal, the division factor and the first internal clock signal. The charge pump PLL circuit generates a plurality of third internal clock signals by using the second internal clock signal. The divider generates a high-frequency clock signal in response to a phase selection signal, the division factor and the third internal clock signals.09-30-2010
20110227616PHASE LOCKED LOOP CIRCUIT, METHOD OF DETECTING LOCK, AND SYSTEM HAVING THE CIRCUIT - Provided are a phase locked loop (PLL) circuit, a lock detector employable with a PLL circuit, a system including such a PLL circuit and/or lock detector, and a method of detecting a lock/unlock state of a PLL circuit. The PLL circuit may include a clock generating circuit configured to generate an output clock signal having a predetermined frequency in synchronization with a reference clock signal. The lock detector may be configured to determine that the PLL circuit is in a lock state when a phase difference between the reference clock signal and the output clock signal is equal to or less than a first reference value, determine that the PLL circuit is in an unlock state when the phase difference between the reference clock signal and the output clock signal is greater than a second reference value, and generate a lock detection signal.09-22-2011
20110227617PHASE LOCKED LOOP CIRCUIT AND SYSTEM HAVING THE SAME - A phase locked loop (PLL) circuit and a system including such a PLL that may at least compensate for leakage current in a loop filter. The PLL circuit may include a voltage adjusting unit configured to pump charges based on a phase difference between an oscillation clock signal and a reference clock signal, a loop filter configured to generate a frequency control voltage, a level of which is shifted by the charge pumping of the voltage adjusting unit, a voltage controlled oscillator (VCO) configured to output the oscillation clock signal having a frequency corresponding to the frequency control voltage, and a current control circuit configured to generate a compensation current corresponding to a leakage current generated by the loop filter and allow the compensation current and the leakage current to substantially and/or completely counterbalance each other.09-22-2011

Patent applications by Jae-Jin Park, Seongnam-Si KR

Jae-Jin Ryu, Kyungki-Do KR

Patent application numberDescriptionPublished
20100007834LIQUID CRYSTAL DISPLAY - A liquid crystal display includes a first insulating substrate with a top surface and a bottom surface. A pixel electrode is formed on the top surface of the first insulating substrate. The pixel electrode has a first opening pattern at each pixel area. The pixel electrode with the first opening pattern is substantially rectangular in shape with a first long side and a second long side, and first short side and a second short side. The pixel electrode is divided into an upper region defined by the first long side and the second long side and the first short side, and a lower region defined by the first long side and the second long side and the second short side. A second insulating substrate with a top surface and a bottom surface is arranged parallel to the first insulating substrate at a predetermined distance from the same such that the bottom surface of the second insulating substrate faces the top surface of the first insulating substrate. A common electrode is formed on the bottom surface of the second insulating substrate. The common electrode has a second opening pattern at each pixel area, which correspond to each pixel area of the pixel electrode. A liquid crystal layer is sandwiched between the first substrate and the second substrate while contacting the pixel electrode and the common electrode. The first opening pattern and the second opening pattern each have a plurality of openings, the openings of the first opening pattern and the second opening pattern being alternately arranged parallel to each other.01-14-2010

Patent applications by Jae-Jin Ryu, Kyungki-Do KR

Jae-Jin Shin, Seoul KR

Patent application numberDescriptionPublished
20080287573Ultra-Low Dielectrics Film for Copper Interconnect - The present invention relates to an ultra-low dielectric film for a copper interconnect, in particular, to an porous film prepared in such a manner that coating with an organic solution containing a polyalkyl silsesquioxane precursor or its copolymer as a matrix and acetylcyclodextrin nanoparticles as a template and then performing a sol-gel reaction and heat treatment at higher temperature. The present films may contain the template of up to 60 vol %, due to the use of acetylcyclodextrin, and have homogeneously distributed pores with the size of no more than 5 nm in the matrix. In addition, the present films exhibit a relatively low dielectric constant of about 1.5, and excellent interconnectivity between pores, so that they are considered a promising ultra-low dielectric film for a copper interconnect.11-20-2008
20110113465METHOD AND SYSTEM FOR IDENTIFYING SET-TOP BOX IN DOWNLOAD CONDITIONAL ACCESS SYSTEM - A set-top box identification method and system for identifying the set-top box which is currently connected to a Downloadable Conditional Access System (DCAS) based on set-top box manufacturer and/or set-top box model are provided. The set-top box identification method for the DCAS includes retrieving set-top box type information upon receipt of a set-top box information request transmitted by a DCAS headend, transmitting the set-top box information including the set-top box type information to the DCAS headend, and identifying, at the DCAS headend, the set-top box based on the set-top box information. The DCAS headend can acquire the information on the connected set-top box at any time and determine the manufacturer and model of the set-top box from the set-top box information.05-12-2011

Patent applications by Jae-Jin Shin, Seoul KR